For (AT&T) Alcatel One Touch 510a 817a Life-Tech(TM) Dual Ports USB Car Charger Adapter + USB Charging/Data Cable Dual USB sockets allow you to charge 2 devices at once. Simply use a compatible usb cable for your device to get charge up from this charger 5.0V ~ 2000mah Output Port A charges: iPad, mp3 players, gps, and mobile devices. Port B charges: Galaxy Tab, mp3 players, gps, and mobile devices Quantity: 1x Black Dual USB Ports Car Charger Adapter, 1x USB Charging/Data Cable